Excellent!

Few extensions you can just copy/paste and get them to work first time! (Ok, second. CSS rule with URL to background image assumes the CSS was put in ExtJS's css dir.) Still only took a minute though. Works on mixed row expansions as well. Thanks!

This will also help me figure out how to make the collapse/expand functionality happen when clicking any part of a specific row, not just the tiny +/- signs. Please respond if any of you know how to do this already!

This will also help me figure out how to make the collapse/expand functionality happen when clicking any part of a specific row, not just the tiny +/- signs. Please respond if any of you know how to do this already!

Nevermind. In looking into how to implement this, I discovered double-clicking anywhere on the row/expanded area does the trick.